This paper introduces current development and trends of ducted fan flying robot which takes advantages of VTOL(Vertical Take-Off and Landing) techniques.
文中介绍了基于涵道风扇技术变姿飞行机器人的发展现状及趋势,还分析了变姿飞行机器人变姿的方式及关键技术。
Compared with the propeller or the rotor,the ducted fan provides a larger aerodynamic thrust(lift) and the low noise due to the shrouding duct.
涵道风扇较同样直径的孤立风扇能产生更大的升力,且风扇环括在涵道内,既可阻挡风扇气动声向外传播,又结构紧凑、安全性高。
Some unmanned aerial vehicles can vertically take off and land with the ducted fan system, but there is no valid method to analyze the aerodynamic characteristics of a ducted fan system currently.
近几年出现了许多构形新颖的垂直起降无人飞行器 ,都以涵道风扇作为升力系统。
Install the engine fan and hub assembly and shrou
安装引擎风扇和毂总成及导片圈。
Viscous Fan Drive—Engine—Typical
粘性风扇驱动—0公升引擎—
Slip the fan shroud rearwarRemove the fan shroud and viscous drive/fan blade together as one assembly from the engine compartment.
向后滑动风扇护壳。把风扇护壳和粘性驱动/风扇叶片作为一个组合体从引擎室中拆下。
Lift fan module up off of mounts and out of engine compartment.
向上升高风扇模组，使其与装置分离，并置于引擎室之外。
Building air intake,no vehicle emissions,turn off motor
楼房进风口,请熄掉引擎。
Research and Implementation of Integrated Risk Vertical Search Engine;
综合风险垂直搜索引擎的研究与实现
Case Studies on the Risk of Technology Innovation of Search Engine Company;
搜索引擎企业技术创新风险实证研究
To equip with a motor.
装引擎安装引擎设备
Engine Oil Dipstick Engine
引擎机油尺0公升引擎
The Research and Application of Integrated Risk Search Engine Technology;
风险主题搜索引擎相关技术的研究与应用
A movement of air generated artificially, as by bellows or a fan.
气流（如用风箱或扇子等）人工引起的空气流动
"The mechanical power may come from various sources: turbines powered by water, wind, steam, or gas; gasoline engines; or diesel engines. "
机械动力的来源可能各有不同:由水、风、蒸汽或气体发动的涡轮机;汽油引擎;或柴油引擎。
Scribe hood hinge outlines on hood and remove the hoo
在引擎盖上画出引擎盖铰链轮廓，拆下引擎盖。
Lower the engine and engine support cushions onto the engine compartment brackets.
降低引擎和引擎支撑坐垫到引擎室托架上。
NSR nVidia Shading Rasterizer
nVidia描影光栅引擎
The new engine may use half as much oil as the old one.
新引擎的油耗比旧引擎少一半。
Lift the engine out of the engine compartment.
升高引擎，使之离开引擎室。
This procedure is done with the engine cylinder head removed from the block.
程序用来从引擎区拆下引擎汽缸盖。